B44.9 ICD-10-CM Code: Aspergillosis, unspecified

B44.9 is the billable ICD-10-CM code for “Aspergillosis, unspecified” in the FY 2027 U.S. code set, effective Oct 1, 2026.

Official description

B44.9

Aspergillosis, unspecified

ICD-10-CM diagnosis code · United States clinical modification

More specific than B44.9

B44.9 is an unspecified code, for when the note doesn’t say more. If it documents the type, cause, or site, one of these codes may fit better.

Where B44.9 sits

  1. 1

    Chapter 1

    Certain infectious and parasitic diseases (A00-B99)

  2. 2

    Section

    Mycoses (B35-B49)

  3. 3

    Category B44

    Aspergillosis

  4. 4

    Code B44.9

    Aspergillosis, unspecified

Notes for this code

Inclusion terms

No inclusion terms are listed for B44.9.

Code first

No “code first” instruction is listed for B44.9.

Use additional code

No “use additional code” instruction is listed for B44.9.

Excludes1

Conditions that should not be reported together with this code.

No Excludes1 note is listed for B44.9.

Excludes2

Conditions not included here that may be reported separately when present.

No Excludes2 note is listed for B44.9.

Source and release

Data release
U.S. ICD-10-CM · FY 2027
Effective date
Oct 1, 2026

This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.

Frequently asked questions

What does ICD-10-CM code B44.9 mean?

B44.9 is the FY 2027 U.S. ICD-10-CM code for “Aspergillosis, unspecified.”

Is B44.9 a billable or specific ICD-10-CM code?

Yes. In the FY 2027 reference data used on this page, B44.9 has no child codes and is presented as a billable/specific code. Always confirm the active code set and payer requirements before use.

Where is B44.9 located in ICD-10-CM?

B44.9 is listed in Chapter 1, Certain infectious and parasitic diseases (A00-B99), within Mycoses (B35-B49) (B35–B49), under category B44, Aspergillosis.

What coding notes are listed for B44.9?

No inclusion terms are listed for B44.9 in this reference record. No code-first instruction is listed. No Excludes1 note is listed. No Excludes2 note is listed.